W415-0077 / F / 11.07.11
1. Select the location that best suits your installation. Remove the outside
knock-out, cut out the insulation and remove the inside knock-out.
2. Bend the front & back tabs and cut out the insulation from those
areas.
3. Insert the backdraft damper, as shown, until rib touches the top of
the appliance. Bend out the tabs to secure the damper.
4. Once installed, bend the 4 securing tabs on the damper assembly
outward to secure.
5. Bend the top front and back tabs back into position fl ush with the
fi rebox top, the bottom tabs may be left bent.
6. Slide the insulation sleeve over the fl ex liner. Expose one end of the
liner, place over the damper body and secure using 3 screws. Push
the sleeve down over the liner.
4 LOCATIONS
MASONRY ONL
Y
OUTSIDE
KNOCK-OUT
INSIDE K
NOCK-O
UT
INSULA
TION
FRONT
/ BACK T
ABS
90° UP
90° DOWN
BACKDRAFT DAMPER
PROTRUDED
RIB
SECURING
TAB
SECURING
TABS
TOP VIEW
NZ3000 Only
INSTALLATION INSTRUCTIONS:
The backdraft damper must:
Be mounted vertically, tab end down,
immediately off the appliance or immediately after the elbow when
venting off the side.
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